
The following YouTube links will give an idea of the range of song repertoire that Christopher Goldsack enjoyed performing before deciding to further his career as a teacher:
O ma belle rebelle by Gounod
    poem by Jean Antoine de Baif
    piano - Claire Toomer
  
Related videos:
    Le soir by Gounod
    Venise by Gounod
Pueblito, mi pueblo by Guastavino
        mezzo-soprano - Janet Shell
    piano - John Flinders
Related videos:
    L'addio by Donizetti
    Guarda qui by Haydn
    Pastorale by Saint-Saens
  Pleurs d'or by Fauré
L'heure exquise by Hahn
      poem by Paul Verlaine
        piano - John Flinders
      
Related videos:
        A Chloris by Renaldo Hahn
I'll see you again from Bitter Sweet by Noel Coward
           mezzo-soprano - Janet Shell
        piano - John Flinders
Related videos:
        I Remember It Well from Gigi by Lerner and Loewe
My life's delight by Roger Quiter
          poem by Thomas Campion
            piano - John Flinders
Related videos:
            My life's delight by Roger Quiter
          Blow, blow thou winter wind by Madeleine Dring
La grotte by Debussy
      poem by Tristan L'Hermite
        piano - John Flinders
Related videos:
        Foret by Andre Caplet
  
Ich wollt', meine Lieb' by Mendelssohn
    mezzo-soprano - Janet Shell
piano - John Flinders
Related videos:
    Komm herbei, Tod by Cornelius
L'adieu en barque by Andre Caplet
      no. 5 from Cinq ballades de Paul Fort
    piano - Claire Toomer
    
Related videos:
        Cinq ballades de Paul Fort, nos. 1 and 2
    Cinq ballades de Paul Fort, nos. 3 and 4
Dunque io son from Rossini's The Barber of Seville    mezzo-soprano - Janet Shell
      piano - John Flinders
Matilda by Liza Lehmann
     mezzo-soprano - Janet Shell
        piano - John Flinders
Trois poemes de Ronsard et un de Clement Marot by Jean Rivier
piano - Claire Toomer
There are further recordings available on YouTube too.